Galvanizing mechanism



May 14, 1929. P. J. KELLEY 1,713,232

GALVANI ZING ME CHANI SM Filed March 12, 1925 3 sheets-sheet 1 m ,f lq w N w N W U c i? u? t? AMaly 14, 1929. P. J. Kx-:LLEY

GALVANIZING MEGHANISM Filed March l2, 1925 5 Sheets-Sheet 2 @Wemag May 14, l929.V P. J. KELLEY 1,713,232

GALVANIZING MECHANISM Filed March 12, 1925 3 Sheets-Sheet 5 PAZ@ Patented `May 14l 1929;

UNITED STATES PATENT oFFlRcE.

PATRICK J. KELLEY, 0F MANSFIELD, OHIO, ASSIGNOR TO THEOHIO BRASS COMPANY, OF MANSFIELD, OHIO, A. CORPORATION OF NEW JERSEY.

GALVAN IZIN G MECHANISM. Y

.Application led March 12, 1925. Serial` No. 14,989.

My invention relates to process and apparatus for coating castings with a thin and uniform layer of metal such as zinc, tm, etc'.

The objects ofmy invention are to provide an apparatus by means of whlch a` quantit-yof castings maybe coated at a t1me and with a uniform coating of metal, and in which all excess metal is-removed from the castings, giving them a smooth and attractivek appearance, and to secure these results with economy and small effort upon the part of the operator.

My invention resides in the new and ynovel construction, combination'and relation of the parts more fully here1nafter-descr1bed and disclosed in the accompanying drawings.

In' the drawings:

Fig. l is a side view in partial section of my invention yshown as mounted upon a pedestal.

Fig.-2 is a top plan view of my lnvention as shown in Fig. 1. l

Fig. 3 is a side plan view of my invention, but showing the opposite sldefrom that shown in Fig. 1.

Fig. 4 is an end view of my lnventlon looking toward the right hand end of Flg. 2.

Fig. 5 is a detailed view of a partof the operating mechanism and Fig.` 6 is a section of the same on the line 6-6 of Fig. 5.

Figs. 7, 8, 9 and 10 are various enlarged views of the casting container.

Fig. 11 is a partial vertical sectlon `aloner line lle-ll of Fig. 3 showing the plvotal mounting of the horizontal bed upon the pedestal 2. y

I provide a furnace represented by the numeral 1, which may be of the usual type, consisting of a steel or iron tank mounted within the furnace walls and having an open top and which is heated by solid, gaseousor Y liquid fuel. My furnace is not necessarily of any special construction so-long as'lt 1s possible for access to the molten zinc within by the casting container later described. Il

mount my invention upon a` pedestal of any suitable sort adjacent to the tank l so that the casting container will be mounted over the molten bat-h. In Fig. l I have shown my invention as mounted upon Ythe brick pedestal 2. Upon the-pedestal 2 is a4 base casting 3 secured thereto by the bolts 4. The base casting is formed with a central hollow formed a be boss 5 in which is mounted a pivotal memberI 6 which'is free to be rotated about a,v vertical axis. The upper portionl of the pivotal member 6 isformed with a boss adapted to fit between the lugs`7, shown in Fig. 5, and

the pivotal member is provided with a` transverse hole in the lugs 7 also to receive the pin 8 by means of wich the lugs 7 are secured to the pivotal member 6 such that the lugs may pivot in a-vertical plane about l the horizontal axis of the pin 8. The lugs 7 form downwardly projecting members of` the plate 9 which'is secured to the longitudinally disposed and spaced channel beam 10 by means ofthe bolts 11. The plate 9 confusing.

' It will be a preciated that thus far I have d) upon which to build my invention and which bed ispivotal in both a horizontalfand vertical direction. The pin 8 is made stationary with the pivotal member 6 and upon the end-of the` member 8 is rigidly mounted a -catch plate l14: provided with a plurality of notches 15. ,l

T o the under side ofthe channels 10 are two transversely disposed angle members 16 and through these angle members project a rod 17 which is movable longitudinally and held in an advanced position by the spring 19. The right hand end of the rod 17is turned downward to form aliandle 20 and the opposite end is secured to a movable link 21 pivoted to the frame 10 to act as a support and is also provided with a tooth 22 adapted to engage the lnotches 15 in the catch plate. It will be observed from Fig.

means of the `cross-bar 12v se-l cured to t e channels by means of the bolts` 4land other cross-bars may be employed.-

also, but which I do not show as itis merely and the casting container submerged in the metal tank.

Mounted upon the left hand end of thek channel members are two bearings 23 and the channels 10 by means of the bolts '25. Mounted inthe bearings 23 and 24 is a hol-` low shaft 26. Upon the right hand end of the shaft 26y is rigidly mounted a bevel 'gear 27 and mounted upon the left hand end is the casting container 28. The container '28 is so mounted upon the shaft 26 that the shaft extends throughthe container and the container is secured to the shaft by means of the flange 29 "which may be secured to the container by means of the bolts 30, and secured to the shaft in any. suitable manner as by means of a key 30 and set screw or a set screw alone.

Mounted upon the transverse shaft 31 se-v cured to the channels 10 is a beveled pinion 32 which meshes with the bevel gear 27. On eachend of the shaft 31 is mounted a pulley g 33 and 34 Vrespectively and the members 31,

32, 33 and 34 rotate simultaneously and in the same direction. The pulleys 33 and 34 are adapted to receive a belt 35 and 36 respectively. Upon the frame composed of the ychannels 10 and at the opposite end from tlie casting container 28 is mounted an electric motor 37 or other source of power for operating the apparatus. The belt 36 I show as connected directly to the pulley 38 on the motor, but the belt is connected to the motor through the medium of -gearing so as to give the shaft 31 a materially reduced speed when driven by the belt 35 as compared with its speedwhen driven by` the belt 36. The gears are shown as 39, 40 and 41, the .latter being connected to the pulley 42 to which the-belt 35 is directly connected. Transversely disposed with respect to the frame is a cross shaft 43.and secured thereto is an operating lever 44. To the lever 44 is pivoted a pulley 45 to engage the belt 36 whenthe lever is moved upwardly and, therefore, acts as a belt tightener for` the belt 36. Secured to the shaft 43 atthe other side of the frame is a lever 46 to -which is secured a pulley 47 which engages with the belt 35 and when infengagement therewith acts asy a belttightener forfthe belt From this, it will be recognized that the belts 35 and 36 normally are loose belts and when the lever 44is in a middle position the pulleys and 4 7 will be out of engagementwith the belts and/the motor is free to rotate without rotation of the cross shaft 31, therefore, if the operator wishes `to rotate the casting container,y 28 at a slow.

speed he moves the operating handle 444 downward and if he wishes to operate at a high speed he will move the handle 44 upwardly. i

p sion for a considerable length bf time, I 24 and these are secured 1n position upon ings are submerged in the tank of moltenl metal, and as I prefer to have this submer provide a rack 48, shown in Fig. 5, with a plu-v rality of teeth 49 such that .the handle 44 When in a downward position, in-which position the casting container 29 rotates slowly, 'will engage with the teeth 49 and be held in a downward position, thus relieving the operator.

It is desirable to hold the casting container 28 in a certain position while loading castings therein and in another position when dumping the castings, therefore, in order to not only hold the container in a predetermined position, but to stop it quickly and as near such position as possible, I provide a brake which will engage the pulley 33 when the handle 44 is in mid position and in which yposit-ion both belts are loose. The brake referred to comprises a brake arm 50 pivoted at 51 and having a. shoe 52 to engage the pulley 33. Mounted longitudinally upon the frame in suitable bearings is a shaft 53 provided withy an'upright member 54 and 55 at. its respective-ends and rigidly secured tothe shaft 53. To the'upper end of the member y54 is a transverse member 56 which connects with the brake arm 50 and is pivotally connected to the brake arm and to the member 54. The member 55 is positioned adjacent the bracket V48 and is shown in Fig-5 by the dotted lines. -When the operating handle 44 reaches mid position it is possible to move it sideways and to the right, as shown. in Fig. 5, into the slot 57 ,and as it is moved to the right it'will enygage the upper end of the member 55 and .move it to the right. When this takes place the shaftv 53 is rotated and the upper end of the member 54 is moved to the right and withit the transverse rod 56 thereby mov- ,ing the brake beam 50 about yits pivotal point 51 and the brake shoe 52 will be moved into engagement with the pulley 33.

Secured to the end of the vchannel iron frame is a cross bar 58 and projecting from would be normally in engagement with the teeth 62 by means of the spring 65. f From this arrangement it will be seen that the flever 60 may be moved .in a longitudinal diisoI in a predetermined position. Pivotally seeuretr'to the lever 60 is a longitudinally discontainer 28 the posed rod 66 and which extends through the hollow shaft 26 and rojects beyond its extreme end and beyond) the endof the casting container 28. The. end of the rod 66 vis provided with two' adjusting nuts 67 which arev adapted to engage the lever 68 p ivotally positioned upon the casting container 28. The lever 28 has a passagetherethrough to receive the end of the rod 66 and when the handle is moved forward or backward the lever 68 is also moved forward or backward.

The casting container 28 I 'have shown `as comprising the end members 69 and 7 0.

These end members may be round, square, hexagonal or other shapes as deslred. Se-

cured to these end members in such a way as to form an enclosure are the sides 71, 72

and 73. The ends and the'sides may be secured together either by riveting or welding,

both methods of which are well known in` the art. The members 71 and .73 are shown as provided withphinges '74 and to these hinges are secured covers 7 Q and 76 which in turn` are provided with hinges 77. The side 73 is shown as provided with latches 78. Longitudinally mounted upon the cover 76 is a slidable bar 79 which is held in position by the straps 80 secured to the /cover 76 either by welding or riveting. The slidable bar 79 is provided with tongues 81 which engage with openings lthrough the latches 78 so thatwhen the covers are in closed position and the slidable bar 79 moved so that the latches 81 engage with the latches 78 the coverswill be held in a closed position.

In order to operate the 'movable bar 79, the bar 68 is pivotally secured to the end member 69 as shown in Fig. 7, and the bar 68 also passes through an opening inl the b ar 79'such that when the bar 68 is moved .about its pivotal point the bar 79 will be moved forward and backward and engage and disengage with the latches 78 on the cover vv75.' Themember 68 is operated, as already explained, through the medium vof the rod 66 which connects with the lever. 60.

If the casting container 28 when rotating is brought to rest with the. covers 75 and 76 in a downward position and the lever 60 is operated so as to disengage the members 81 from the members 78, then the covers will open, as shown in Fig. 9, by gravity and any castings contained therein will be free to drop out.

Vhen it is desired to load the casting osition of the container will be reversed iiom that shown in'F ig. 9 and the covers thrown back andthe castings loaded within the container and the covers will then be closed and the lever 60 operated to lock the covers in their` closed position.

. It will be noted that the sides and ends of the container 28 are perforated soasto allow free access of the molten metal to the interior of the container.

In the use of my invention, it is mounted so that the container Amay be moved downwardly about the pivot-al points until the container may be plunged Within a tank of molten zinc, tin or other metal desired. The

'container is first filled with castings to be coated and the covers closed, as already described.- The motor 37 may be in operationl as it is not Inecessary to stop' the motor inv .loading and unloading the container 28.

`When the container has been properly loaded and closed the handle 20 is then operated so as to permit lowering the container 28 into the metal bath and the machine is locked in-the lowered position and its longitudinal axis may coincidessubstantially with the line A-A and locked in this position by releasing`the handle 20. The operator then moves the handleI 44 downward which will bring the pulley 47 into engagement Vwith the belt 35-thereby tightening the same and as the motor is .operating the pulley 42 will be operated and the pulley 33 will be caused to rotate which in turn will rotate the beveled gears 27 and 32 and simultaneously therewith the shaft 26 and the container 28 at a slower speed. After the castings have rotated in the metal bath for a predetermined length of time the operator thenv disengages the device from its locked oblique position and raises the same slightly from the bath and moves the lever 44 to its `upper position.

which relieves the pressure n the belt 35 and tightens the belt 36 thereby causing the container 28 to operate at a -higher speech which permits the excess molten metal to be thrown oit'. In order to change theposition of the castings within the container while removing the excess zinc, which is desirable in order that they may be better relieved of the excess metal, and especially where castings having hollow places are involved, it is desirable to stop the rotation ,of the member 28 or to slow down llt) the speed.' so that the east-ings may change their position. and this is done by the operation of the member 44 to either its central 'position and the brake applied, or to its lower` position where the speed is rcvduced, and then the handle is brought u so as to give to the container 28 a high -spee This operation of changing the position of the castings and rotating under high speed can bel repeated a number of times thereby thoroughly cleaning-the castings, both inside and out, of excess metal.

When such cleaning operation has been completed the machine is swung around withthe container 28 over a receptacle and the machine stopped with the covers 75 and 76 .in a downward position, and then the lever 60 operated to permit Vthe opening of, the covers, as already described, or shouldA the container be brought to rest over a receptacle with the covers at an upper position, then'a slight operation of the handle 44 to transmit motion to the 'container 28 will cause the container to open when the covers have reached a lower position.

Having emptied the container, it is again- If desireda small amount of salammoniac.

salts or other flux' may be 'thrown into the f container, together With castings, and I find that flux applied in this manner\is very uniformly distributed over the. surface of the castings and has a most beneficial effect.

If desired, the higher speed mechanism may be omitted and the castings cleaned of surplus metal. by tumbling aboutin the container at the slower speed which keeps the castings constantly tumbling about in the container and the excess metal will be removed by drip and the jarring action..

vThe speed ofthe container while immersed 1 in the coating bath should not be so great as to prevent the coating metal from entering the container through thefperforations or other openings and maintain a metal as great or nearly as great as the metaloutside of the container. This is advisable so that the coating may be assured to contact for the greatest possible time with, all parts of the articles to be coated and hence produce re'- liability and uniformity. If the container is of the perforated 'type and the speed is too great there will be, of course, a tendency to' prevent the metal from freely entering the container.

It will-be readily understood that with the axis of the container obliquely'disposed, that asthe container rota-tes the castings therein will be raised to a certainv point and then they will fall downward and this cycle of,

operation will be continued as long as lthe container rotates, and this change of posi# tion of the castings within lthe container tends to reliability in the Acoating of the product and assures a moreuniform coating than though the articlesmaintained a fixed relative position to -each other while submerged in the coating tank. It is also evident that the tumbling ofthe casting-s while being rotated within the bath may also be brought about by having the axis of the container in a horizontal position, but if the axis of the container is in a vertical position then thev castings, as ythe container rotates, will not change their relative position regardless of how slowly the containeruis rotated. f

When the excess metal has been removed from the articles they may still have a coat;

-ing in a somewhat softened condition and I find thatv it is advisable to open the container above a tank containing hot water, or other desirable fluid, which` will quench the articles as they fall from the container and thus means to open the container at will from a point remote fromf the container. 2. apparatus for use in coating articles comprising a mounted frame, a rotatable container, means to drive vthe container,`

means to change the speed of the container at will, means to stop the container at will,

means permitting the frame to be moved froma horizontal position to an oblique position, means to lock the frame in either position atI will and means permitting the' frame to move about a substantially vertical axis while in tion.

3. A container for use in coating articles comprising in combination, a rotatable shaft,

a horizontal or oblique posia closed receptacle secured to the shaft and i rotatable therewith and having perforated sides, means to lock the receptacle closed and means located at a point remote from the receptacle to open the receptacle.

4. A container for use in coating articles comprising in combination, a hollow rotatable shaft, a closed receptacle secured to the Shaft and rotatable therewith and having perforations to ermit the access of a coating material wit in the container, means to through the hollow shaft and extending a distance from the container to` open the container from a remote point at will. v

5. An apparatus for use in coating articles comprising in combination, a mounted frame, a closed and rotatable container 'mounted thereon and having a hollow shaftl .lock the container closed, means passing to drive the same, means to rotate the shaft, p

means to control the rotation of the shaft and container and means located at a point remote from the container ,to open the com tainer.

6. An apparatus for use in coating articles i comprising yin combination, a mounted frame, a closed container, means tolock the container closed, a hollow shaft to which the container is secured, means to rotate the shaft at different speeds,`means to control the operationof the shaft, means located at a of liquid coating material, a container for articles to be coated, means to lower the container into the coating material and rotate the container therein about an axis disposed at one angle and to rotate the container about an axis 'disposed at another angle to remove excess materiaL 8. A coating equipment comprising a tank of liquid coating material, a container for articles to be coated, means to lower the container into the coating material and rotate the container therein about an axis disposed' at one angle and to rotate the container about any one of several different angles to 'remove excess material.

9. A self contained apparatus for use in coating articles comprising a frame mounted to pivot in a horizontal and a vertical plane at will, a container rotatably mounted on the frame, a source of rotative power mount-A ed on the frame, and movable with the frame to maintain a fixed position relative to the operative parts on the frame, means connecting the container and source of power to rotate the container and means to stop the rotation of the container at will.

10. An apparatus for use in coating arti-` cles comprising a frame mounted to move in a vertical plane about a horizontal axis, al container rotatably mounted .on the frame and movable with the frame, means to rotate the container at different speeds at will. of an operator comprising an electric motor and speed changing mechanism, both mounted upon the frame in fixed position relative tor the "container, the speed changing mechanism me: hanically connecting the motor and container and the container and.

motor so positioned as to tend .to ldistribute their weight on either side of the horizontal axis. y

11. A- metal coating apparatus comprising in combination, a stationary tank to hold a metal in fluid state, a container to hold'a plurality ot' articles at one time andto dip into the metal bath, a frame on which the container is mounted, means to rotatel the containerin the bath at a predetermined speed,.means ,to hold the container in the` bath with its axis at an obluiie angle such that thearticles will be raise and dropped alternately within thecontainer and their relative position changed as the container a tank for a m'etal bat j rotates and `means to change the rate of rotation of the container to a greater after the container has been removed the bath. v ,e

12. An apparatus for use in coating articles With metal comprising a tank containing a fluid bath of the coating metal, a container adapted to loosely receive a plurality of castings to be coated and tumbled about within the container, means to' mount the container ona support and permit the container to be moved either -into orout of the fluid metal at will of the operator and means to rotate the container at will of the operator and tumble the castings about within the container and relative to each other and to the container while the container is submerger in the fluid.

13. A metal coating apparatus com rising in combination, a stationary tank to old al metal in fluid state, a container to hold a plurality of castings loosely at one time and dip into and out of the metal bath, a frame on which the container is mounted, means to rotate the container both within and withoutthe bath at predetermined speeds and the axis of the container about which it rotates being obliquely disposed while the container is in the bath,- the speeds of the container being such that the articles will be raised and dropped alternately and relative to each other within the container as the container rotates within the metal bath and when the container is removed from the bath and rotated, the `castings may be either alternately Araised and dropped within the container at one speed or maintained imi movable relative to the container due to a. higher speed and at will of the operator. 14. A metal coating al;l aratus comprising a perforated rotatable container'for castings and movable either into or out of the bath at will of an operator, means to rotate the container at will of the operator, and means to rotate the container and alternately raise and drop the castings within the container relative of the operator.

15. A metal coating apparatus comprising a ltank for a metal bathna perforated rotatable container for castings and movable either into or out of the bath at will of anv operator, means to rotate the container atwill of the operator, and means to 'either rotate the container and simultaneously therewith alternately raise and drop the castings relative ,to each other and to the container as the container rotates, or rotate the container speed rom4 to each other and to the container at will and a drive mechanism therefor mounted on the frame, means `Connecting the drivel mechanism and the container to impart to the container different speeds at Will of the operator Without changing the speed of the drive and'means to stop the container without stopping the drive mechanism.

17. An apparatus for use in coating articles comprising a frame mounted to pivot in a vertical plane about a horizontal axis the container and said Vmeans and means to change the speed of the container at Will of the operator.

ture.

PATRICK J. `KELLEY- -Invv testimony whereof I an my signa- 

